bernardo61 bernardo61

23-08-2022
Mathematics

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2. How do you know if a number is
divisible by 9 without dividing?

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ericfeng1003 ericfeng1003

23-08-2022

Answer:

Add all the digits of the number, then check if that sum is divisible by 9. If yes, we know the number is divisible by 9.

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3nq9j2u9g9 3nq9j2u9g9

23-08-2022

If the sum of all the digits of a number is divisible by 9, then the number is also divisible by 9. examining its digits.

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